Steam-boiler



' 0.. BELLMAN.

STEAM BOILER.

Patented Aug. 27, 188 9."

1 (No Model.)

- UNITED STATES PATENT OFFICE.

OSCAR BELLMAN, )F HAGERSTOl/VN, MARYLAND.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 410,065, dated August 27, 1889.

Application filed February 11, 1889. Serial No. 299,372. (No model) To aZZ whom it may concern:

Be it knownthat I, OSCAR BELLMAN, a citizen of the United States of America, residing at Hagerstown, in the county of Vashington and State of Maryland, have invented certain new and useful Improvements in Steam-Boilers, of which the following is a specification,

reference being had therein to the accompan ying drawings.

This invention is directed to certain improvements in steam boilers'or heaters, having for its object to promote the heating capacity thereof, as also to prevent the undue burning out of the pipes; and to these ends the nature of the invention consists of the combination of parts and their construction, as will more fully appear from the following description and the accompanying drawings, in which-- Figure 1 is a side elevation of my improved water heater or boiler. Fig. 2 is a sectional elevation thereof, and Fig. 3 is a plan view of the same.

In the embodiment of my invention I employ an upright feed-water column or ch amber A, upon which is secured the water tank or chamber 13.

O is a series of pipes consisting of a number of single pipes c 0, each forming a proximate rectangle, one end a being connected with one side of the feed-water column A, while the other end a is connected with the front side of said column. The feeding or receiving end a of each pipe connects with the feed-water column A at a higher level or point than its other or delivery end a connects with said feed-water column, the pipes thus being arranged in an incline, the purpose of which is to insure the circulation of the water and its discharge into the same general source from whence the pipes receive their supply. This also, by keeping up the circulation, prevents the undue burning out of the pipes.

The series of pipes C C may be duplicated, if desired. These pipes form, as it were, the inner surface or lining of the fire-chamber of the furnace to effect the heating of the said pipes and the contained water forhouse purposes. The wall of the fire-chamber is not built so that the pipes will be in direct contact therewith, but will stand about one and a half. or two inches therefrom, permitting the fire to have access to the pipes on all sides, said wall being made of firebriok or other non heat-conducting material.

D is a series of inclined waterheating or steam pipes connecting at their upper ends with a common transverse pipe d, having arms (1' d, reaching up and connecting with the upper part of the tank or chamber B. The lower ends of the said series of pipes D connect with a similar common transverse pipe (1 by means of elbows 61*, however. The pipe (1 is connected to horizontal side pipe E E, reaching forward and connecting by arms with the water-column A, thus securing a circulation of the water in the pipes D D. These pipes are also, disposed within a firebrick inclosu-re, while beneath them is erected a brick or masonry wall, forming a smoke and draft fine e of suitable dimensions-say of about two and a half or three inches deepleading to thechimney at the lower ends of the said pipes. This heater or boiler produces a uniform temperature and heat, thus securing a uniform temperature of steam.

Although I have described the feed-water column as a single chamber, yet, if desired, it may be subdivided vertically by the proper disposition therein of a partition into two chambers or compartments, thus separating the delivery side of the column from the side receiving the return circulation or water.

Having thus fully described my invention,

what I claim, and desire to secure by Letters Patent, is-

1. The boiler or heater having the series cased inclined fire-chamber pipes, the upright water chamber or column, the Water tank or chamber superposed upon the upright water chamber or column, and the seriesof inclined the lower ends of said latter pipes, substanpipes connected at one end by a transverse tially as set forth. IO pipe and arms to the water-tank, and having, In testimony whereof Iaflix my signature in their lower ends connecting transverse pipe, presence of two witnesses.

5 connected by additional pipe with the lower OSCAR BELLMAN.

end of the water-column, a smoke and draft Witnesses: space or fine being provided below the in- T. FRANK BOYER, clined pipes, and air-inlets between elbows at WILLIAM N. KUHNS. 

